Improvement in beater-reels for thrashing-machines



Pa tented Jan.4,1876.

MFEIERS. PHOTO-LITHOGRAPHER, WASHINGTONv D. c.

UNITED STATES PATENT OFFICE.

CHARLES S. HALL, OF ROCHESTER, NEW YORK.

' IMPROVEMENT lN-BEATER-REELS FOR THRASHlNG-MACHINES.

Specification forming part of Letters Patent No. 171,725, dated January4, 1876; application filed July 31, 1875. i

' and giving a plan view of the spider or central support C and itsdovetail screw-blocks a.

Fig. 3 is an inside end view of one head, D. Figs. 4 and 5 showmodifications in the shape of the heaters.

The objects of my invention are to provide such a construction of theheaters of grainthrashing separators as will afford the greatest amountof agitation to the grain and straw, to assist the separation thereof,and which, at the same time, will not throw the grain over, so as to becarried out with the straw and be wasted.

I provide the shaft S with two heads, D, preferably of cast-iron, andmade as shown, so as to receive the reduced ends b of the heaters B. Iprefer to have these project through, so as to run very close to theside linings of the machine, which are indicated by the dotted lines-A,Fig. 1, to prevent straws from winding around the shaft. These beatersmay be .made cylindrical or oval or diamond shaped, if preferred, theobject being to have them present as little surface as possible in thedirection of their rotation, so as to prevent throwing the grain. One ormore central supports 0 are-provided on the shaft S. The

wings of these supports are each provided with a dovetail groove, intowhich blocks of Wood, a, are fitted, and an ordinary wo'odscrew, .9, isput through the heaters and screwed into-these blocks, thus preventingbreakage, as well as all centrifugal vibration.

forth.

CHAS. S. HALL. Witnesses:

WM. S. LOUGHBOR-OUGH, W. MARTIN JONES.

